The 538-ft. Blohm + Voss behemoth is available via ultra-exclusive brokerage SuperYachtsMonaco, and is the world’s most expensive yacht charter by far.

The yacht, which has space for 30 guests and 75 crew, reportedly features a military-grade missile defense system, armor plating, bulletproof windows, three helipads, two swimming pools and a wellness center, among other luxe amenities. Its annual running costs are estimated to be about $50million – filling the fuel tank alone costs $650,000.

However, Mr Abramovich, 44, is rumoured to have spent only a few hours on board the 162m-long (533ft) vessel.